Remove unused fns detected by carve

src/main/frontend/search/db.cljs

@@ -1,5 +1,4 @@
 (ns frontend.search.db
-  (:refer-clojure :exclude [empty?])
   (:require [cljs-bean.core :as bean]
             [clojure.string :as string]
             [frontend.db :as db]
@@ -9,10 +8,6 @@
 
 (defonce indices (atom nil))
 
-(defn empty?
-  [repo]
-  (nil? (get @indices repo)))
-
 (defn block->index
   "Convert a block to the index for searching"
   [{:block/keys [uuid page content] :as block}]